Belmont Metals, Inc. HOLTITE GREY SOLDER 4508A

Brazing Alloys Featuring Holtite Alloys and Miter-Al-Braze Alloys for Aluminum Metal Joining Brazing is a metal joining process whereby a filler metal is heated above the melting point and distributed between two or more close fitting parts by capillary action. The filler metal is brought slightly above its melting ( liquidus ) temperature while protected by a suitable atmosphere, usually a flux. It then flows over the base metal ( know as wetting ) and is then cooled to join the workpieces together. It is similar to soldering, except the temperatures used to melt the filler metal are higher for brazing. A variety of alloys are used as filler metals for brazing depending on the intended use or application method. In general, braze alloys are made up of 3 or more metals to form an alloy with the desired properties. The filler metal for a particular application is chosen based on its ability to: wet the base metals, withstand the service conditions required, and melt at a lower temperature than the base metals or at a very specific temperature. Applications: Joining material within the Aluminum family of alloys. Forms: Cast Strips or Powder, special shapes available upon request.